HelloI purchased the book "Direct3D and 3d engine Programming" ISBN: 1847287956. However the support website www.vicampus.com is down.I contacted the author at Stefan.Zerbst@zfx.info but no response. Where can I found the download material for the book ??

A quick googling brought up nothing, but I suspect you already tried that, too. I'll see if I can find Stefan on one of my contact lists. But don't hold your breath, he's a busy guy nowadays and so am I.